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Do try/catch blocks hurt performance when exceptions are not thrown?

During a code review with a Microsoft employee we came across a large section of code inside a try{} block. She and an IT representative suggested this can have effects on performance of the code. In fact, they suggested most of the code should be outside of try/catch blocks, and that only importa...
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Stop Mongoose from creating _id property for sub-document array items

... It's simple, you can define this in the subschema : var mongoose = require("mongoose"); var subSchema = mongoose.Schema({ //your subschema content },{ _id : false }); var schema = mongoose.Schema({ // schema conten...
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Pointers in Python?

...rm.field.value to always have the same value This is feasible, because it involves decorated names and indexing -- i.e., completely different constructs from the barenames a and b that you're asking about, and for with your request is utterly impossible. Why ask for something impossible and tot...
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How do I detect unsigned integer multiply overflow?

I was writing a program in C++ to find all solutions of a b = c , where a , b and c together use all the digits 0-9 exactly once. The program looped over values of a and b , and it ran a digit-counting routine each time on a , b and ab to check if the digits condition was satisfied. ...
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How can I make a time delay in Python? [duplicate]

...follow | edited Jun 14 '18 at 21:04 Peter Mortensen 26.5k2121 gold badges9292 silver badges122122 bronze badges ...
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How does python numpy.where() work?

I am playing with numpy and digging through documentation and I have come across some magic. Namely I am talking about numpy.where() : ...
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Windows下如何判断Win32 or x64? - C/C++ - 清泛网 - 专注C/C++及内核技术

... use the function IsWow64Process as a static function, * you should load it by function GetProcAddress, because * it is not available on all version of Windows. */ LPFN_ISWOW64PROCESS fnIsWow64Process = NULL; /** * This function tells if your application is a x64 program. */ BOOL Isx6...
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What it the significance of the Javascript constructor property?

...r, the significance of the constructor property, as I can't seem to make it have any effect. E.g.: 6 Answers ...
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Wait for a void async method

How can I wait for a void async method to finish its job? 6 Answers 6 ...
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Split Python Flask app into multiple files

I'm having trouble understanding how to split a flask app into multiple files. 4 Answers ...